Hydrochloric Acid → Asp-4000

Participants

Reaction Steps

To a solid of tert-butyl (1R,3S,4S,6R)-3-{[(2S)-2-cyano-1-pyrrolidinyl]carbonyl}-6-hydroxy-2-azabicyclo[2.2.1]heptane-2-carboxylate obtained in Example 42-8 (796 mg), was added a mixture of 4N hydrochloride in dioxane (1.87 mL) and water (0.13 mL). The mixture was stirred at room temperature for 5 minutes. The resulting mixture was evaporated in vacuo and the residual solid was washed with isopropyl alcohol. The solid was recrystalized from ethanol-water to give the target compound as a white crystal (367 mg)

Provenance & Evidence